Records
Prior to the competition, the existing world and championship records were as follows.Results
Heats
The heats were held on 22 July at 10:00.Semifinals
The semifinals were held on 22 July at 20:54.Semifinal 1
Semifinal 2
Final
The final was held on 23 July at 20:51.References
{{DEFAULTSORT:2019 World Aquatics Championships - Women's 100 metre backstroke Women's 100 metre backstroke 2019 in women's swimming